Karen Hatch Drenner, AGACNP-BC
- Medicare patients, 2024
- 187
- Hospital affiliations
- 1
- Industry payments
- $376
- Medical groups
- 2
- State license
- 1
- Practice address
- 3040 North Swan Road, Suite A, Tucson, AZ 85712
- Practice phone
- Call (520) 382-1150
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Tucson Gastroenterology Institute
Surgery Center - Medicare-Certified · Tucson, Arizona
Find Karen Drenner's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Karen Hatch Drenner is an acute care nurse practitioner in Tucson, Arizona
Karen Drenner practices at Tucson Gastroenterology Institute in Tucson, Arizona.
Karen Drenner's NPI, 1548872641, was assigned on August 19, 2020. Karen Drenner holds Arizona license 290690.
- NPI
- 1548872641NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426415837
- NPI enumeration date
- August 19, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (520) 382-1150
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Karen Hatch Drenner practices at Tucson Gastroenterology Institute in Tucson, Arizona
Karen Drenner's primary practice is Tucson Gastroenterology Institute, at 3040 North Swan Road, Suite A, Tucson, AZ 85712. The practice phone is (520) 382-1150.
- Tucson Gastroenterology Institute3040 North Swan Road, Suite A, Tucson, AZ 85712Phone(520) 382-1150
Source: Dmand AI Affiliation Data
Karen Hatch Drenner is affiliated with 2 sites of care and 2 medical groups
Karen Drenner's primary practice is Tucson Gastroenterology Institute in Tucson, Arizona. Karen Drenner is also affiliated with Tucson Medical Center. The medical group on file is TMC Health (Tucson Medical Center). Dmand AI also links Karen Drenner to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Karen Hatch Drenner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Karen Drenner practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tucson Gastroenterology Institute | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Karen Hatch Drenner is one of 625 acute care nurse practitioners in Arizona
Acute care is Karen Drenner's primary specialty in the NPI Registry, under taxonomy code 363LA2100X. Karen Drenner is licensed in Arizona.
Specialties and state licenses
- Acute care nurse practitioner, ArizonaPrimary
Acute care nurse practitioners near Karen Drenner
Counts of acute care nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Karen Hatch Drenner treated 187 Medicare patients in 2024, average age 77
CMS counts 187 Medicare patients who saw Karen Drenner in 2024. The largest group is 75 to 84, with 78 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 2.25, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Karen Drenner's median patient age at 66, with 56% women.
Karen Drenner's Medicare patients by age, 2024
Karen Drenner's Medicare patients by sex, 2024
- Women9249%
- Men9551%
Chronic conditions among Karen Drenner's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Chronic kidney disease50%
- Ischemic heart disease49%
- Mood disorders44%
- Heart failure42%
- Depression40%
Share of Medicare patients with each condition. A patient can have several.
Karen Drenner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Karen Hatch Drenner takes part in Medicare
Karen Drenner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Karen Hatch Drenner received $376 in industry payments in 2025
CMS Open Payments shows 11 general payments to Karen Drenner from 6 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Phathom Pharmaceuticals, Inc. paid the most, $148.
Companies that paid Karen Drenner the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Karen Hatch Drenner's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Karen Hatch Drenner
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Karen Hatch Drenner's NPI number?
Karen Hatch Drenner's NPI number is 1548872641. It was assigned on August 19, 2020, and it is active in the NPI Registry.
What does Karen Hatch Drenner specialize in?
Karen Hatch Drenner is an acute care nurse practitioner in Tucson, Arizona. The primary specialty in the NPI Registry is Acute Care Nurse Practitioner (taxonomy code 363LA2100X).
Where does Karen Hatch Drenner practice?
Karen Drenner practices at 3040 North Swan Road, Suite A, Tucson, AZ 85712. Karen Drenner's primary practice is Tucson Gastroenterology Institute in Tucson, Arizona. Dmand AI also links Karen Drenner to 1 medical group.
What is Karen Hatch Drenner's office phone number?
The practice phone on file for Karen Drenner is (520) 382-1150.
What is Karen Hatch Drenner's medical license number?
Karen Drenner holds Arizona license 290690.
Which hospitals is Karen Hatch Drenner affiliated with?
Karen Drenner is affiliated with Tucson Medical Center.
What medical group is Karen Hatch Drenner part of?
Karen Drenner is linked to TMC Health (Tucson Medical Center). Dmand AI links Karen Drenner to 1 more medical group.
Does Karen Hatch Drenner accept Medicare?
Yes. CMS lists Karen Drenner as accepting Medicare assignment.
How many Medicare patients does Karen Hatch Drenner see?
CMS counts 187 Medicare patients who saw Karen Drenner in 2024, with an average age of 77.
Has Karen Hatch Drenner received payments from drug or device companies?
CMS Open Payments shows $376 in general payments to Karen Drenner from 6 companies from 2025 to 2025. The largest total came from Phathom Pharmaceuticals, Inc.
How long has Karen Hatch Drenner been practicing?
Karen Drenner graduated from medical school in 2016, 10 years ago.
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